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CC754S Brass vs. CC755S Brass

Both CC754S brass and CC755S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is CC754S brass and the bottom bar is CC755S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
110
Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 11
9.5
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 320
390
Tensile Strength: Yield (Proof), MPa 160
250

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 830
820
Melting Onset (Solidus), °C 780
780
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 95
120
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
27
Electrical Conductivity: Equal Weight (Specific), % IACS 30
30

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 47
46
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
33
Resilience: Unit (Modulus of Resilience), kJ/m3 130
290
Stiffness to Weight: Axial, points 7.2
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 11
14
Strength to Weight: Bending, points 13
15
Thermal Diffusivity, mm2/s 31
38
Thermal Shock Resistance, points 10
13

Alloy Composition

Aluminum (Al), % 0 to 0.8
0.4 to 0.7
Copper (Cu), % 57 to 63
59.5 to 61
Iron (Fe), % 0 to 0.7
0.050 to 0.2
Lead (Pb), % 0.5 to 2.5
1.2 to 1.7
Manganese (Mn), % 0 to 0.5
0 to 0.050
Nickel (Ni), % 0 to 1.0
0 to 0.2
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.3
0 to 0.050
Tin (Sn), % 0 to 1.0
0 to 0.3
Zinc (Zn), % 30.2 to 42.5
35.8 to 38.9